Air conditioning unit



Nov. 5, 1940.

F. M. YOUNG ETAL AIR CONDITIONING UNIT Filed Aug.

Search Roam 3 Sheets-Sheet 1 lNl/ENTORS '2 5 7. FRED N. Kit/N6 EDWARD HJTEMPEL X BY 71% 47' TORNEY Search Roam 1940- F. M. YOUNG ETAL 2,220,594

AIR CONDITIONING UNIT Filed Aug. 8, 1938 3 Sheets-Sheet 2 FIG. 7 //vv/v TOR: /7?ED M You/vs [owmo H. STEMPEL A 7' TORNE Y search Roam Nov. 5, 1940. F. M. YOUNG ETAL 2,220,594

AIR CONDITIONING UNIT Filed Aug. 8, 1938 3 Sheets-Sheet 3 l/VVENTORS H250 M 6u-e L-DWAAD H 5 TEMPEL ATTORNEY Patented Nov. 5 1940 UNITED STATES PATENT OFFICE AIR CONDITIONING UNIT Application August a, 1938, Serial No. 223,581

6 Claims.

The present invention refers to an air conditioning device wherein the mechanism is all contained in a single cabinet which may be placed in the room to be served.

5 One of the objects of the present invention is to provide a self-contained air conditioner which may be manufactured in individual sections then shipped and assembled in the room to be served or otherwise.

Another object of the present invention is to provide an individual room serving air conditioner wherein the conditioned air is discharged horizontally a considerable distance from the floor or near the ceiling and the return air caused 16 to enter the cabinet a considerable distance below the discharge point or'at the floor thus to provide a complete movement of all of the air in the room.

A still further object of the present invention is go to provide an air conditioning unit wherein the compressing and condensing mechanism is positioned within a separate compartment or inclosure.

Another object of the present invention is to 28 provide grille outlets in the top of the unit and deflector blades which are positioned on the inlet side of the grilles, the deflectors being bendable whereby they may be positioned to thereby discharge the air fan-like or in any desired di- 80 rection.

To these and other useful ends my invention consists of parts, combinations of parts, or their equivalents, and mode of operation, as hereinafter set forth and claimed and shown in the 35 accompanying drawings in which:

Fig. 1 is a front elevation of our improved unit having one half of the front sectioned on line i-l of Figure 2.

Figure 2 is a side elevation of the device illus- 4p trated in Figure 1 having all of the front removed on line 2-2 of Figure 1.

Fig. 3 is a fractional front elevation of a modiflcation having one half of the front panel and access door removed on line 3-3 of Figure 4.

45 Fig. 4 is a fractional side elevation of the device illustrated in Figure 3 having a portion of the near panel removed on line 44 of Figu Fig. 5 is a detail top view of the outlet grille 60 illustrating the air direction blades in a position to discharge the air slightly fan-like.

Fig. 6 is a front elevation of the grille illustrated in Figure 5.

Fig. 7 is a transverse sectional view of the 66 grille taken on line 1-1 of Figure 6.

Fig. 8 is a sectional view of a room having our improved cabinet positioned therein and il1us-' trating the air travel brought about by the design in Figures 3 and 4.

Fig. 9 is 'a diagrammatic drawing illustrating the entire mechanism of the modification as illustrated in Figures 3 and 4 and indicating by arrows the direction of air travel from the time it enters until it leaves the unit.

Fig. 10 illustrates a modification of the design shown in Figures 1 and 2.

As thus illustrated in Figures 1 and 2 our invention consists preferably of a housing having four compartments designated by reference characters A, B, C and D. Each of these com-. partments may be formed into separate units and detachably secured together. However, as illustrated, sections A and B are made in a single unit and sections C and D are detachably secured together and to this unit. Sections A 20 and B comprise a rear panel 5, a bottom 6, front panel I and side panels 8 and 9 forming a complete inclosure for the condenser unit and the evaporator.

The condenser in its entirety is designated by reference character E and the evaporator .unit in its entirety is designated by reference character F. Unit E comprises a bottom circular member i0 and a top member ii, these two members being secured together by means of a gasketed joint i2. We provide preferably four supporting legs l3, each being mounted on rubber seats i l, the seats being positioned as illustrated in channels l5.

We position in unit E a motor, compressor, condenser and the necessary connections whereby the unit is complete and capable of supplying liquid condensate to evaporator F. The various connections and parts are preferably similar to those illustrated diagrammatically in Figure 9.

We provide a partition ceiling i8 having a suitable covering whereby chambers A and B are insulated one from another. Evaporator F is secured to an outlet duct i9 which is secured to partition 20 and registers with an opening therein. Evaporator F consists of the usual coil of tubes and closely spaced fins through which the tubes extend, the entire assembly being surrounded horizontally by an inclosure 2i. Member i9 is made suitable for the reception of a steam coil as will hereinafter appear.

We provide a grille 22 in the front panel I of unit B whereby the air may enter this grille and pass up between the tubes and fins and into chamber c through duct II. We provide a drip pan II having a drain outlet ll and a removablefront panel II to thereby provide convenient panel Ii having a removable access to chamber A.

Unit C comprisesa rear panel ll and a front lidor. door 82 and side panels II and). Unit D comprises a rear [panel I, ddepanels O. and i1 and a front grille 88 which 'isremovably secured to the unit as illus- Units C and D are separated by a par- .titio'n 30., It will be understood that this partition may either be a part oiisection'C' or a part of section D, and that partition 2| maybe a part of the construction forming either unit'B or C. Section D is-provided with a lid I which is preferably'removably'secured. to the section as illusfor the grille blades H (see Figure 5). These blades are adapted to be easilybent so they may be positioned to discharge the air into the room in any desired direction or fan-like. We prefer- .ablyprovide a deflector plate 40 to thereby assist in directing the air from the fan into the grilles.

It will'be seen that we have provided a cabinet having four compartments, the bottom compartment having-"a complete compressor and con- 5 densing. device, section B having an evaporator andbeing connected to the compressor as clearly illustrated in Figure 9.

.It will be noted that we provide means for moving air from the room into grille 22 through the evaporator F, section G, into section D and then discharge it horizontally from grille 38, that we have provided means whereby the air may be discharged into the roomfan-like; that we have I provided a drip pan for catching the drippings from the evaporator and by referring to Figure 9 it will-be noted that the drippings from the drip pan will be conducted into a tank into which ':the condenser is positioned; the tank being supplied with an inlet valvewhich is thermally controlled and an overflow pipe thus to insure condensation of the com'gasses as willhereinafter appear;

In Figures 3, sfs and a we illustrate a modifi-' cation wherein the bottom section comprises side panels iii and II, each having removably secured grills 82 and I at their'bottoms and front and rear panels I and The bottom of this unit is designated by reference numeral 80. I

we provide spaced partition walls .1 and II which are secured to front and rear'panels N and I and to member 00 at their bottoms terminateattheirtopsasattl s a We providean insulated wall ll, -thus'forming a chamber Ii which is closed at its front by a "removably secured panel or door 12. Thus we provide an inclosu're or compartment into which we position thecompressing and condensing apparatus, the removable door I! providing mymss thereto. a

we, provide a drip-pan 1s whichis positioned as indicated in Figures; and 4 forming the bottomof the evaporator chamber, the evapora,aao,'ses I star and other parts being designated by numerals which are similar to the numerals used in Figures 1 and-2. Chamber Ii, however, differs in that side panels II and II and drip pan II act inform outlets II to air ducts II which' extend from the grilles l2 and l) to these outlets ll. g

We provide eliminators ll which are positioned to thereby direct the drippings into the pan. We provide a drain pipe II for pan 13 which prefer ably drains into the'condenser tank, as will hereinafter appear. We preferably provide air filter pads It and position these pads as illustrated in Figure 3, thus to filterall of the air that enters the unit.

The condenser apparatus'is similar to the apparatus positioned in member E and preferably consists of a motor II and a compresser H; the compressor having a pipe I! which leads to condenser coil It; the condenser coil being positioned in tank 85 into which pipe ll drains; coil 04 having an operating connection It to the i I evaporator coils F; these coils having an operating connection-l1 to compresser .2. Tank II is provided with an overflow pipe it and a thermally controlled valve 89, the valve having a pipe connection to the source of water supply 8' and an outlet 0| into tank 85; thermally controlled valve It being adapted to maintain a desired temperature of the water in the tank, thus if the water from the drip pan is insufficient for cooling purposes, additional water will be supplied by valve 8!, the surplus being permitted to overflow through pipe 88, thus there will be maintained a suitable cold liquid bath for condenser coils l4.

Duct It provides a suitably sized space for the reception of a steam heater coil for winter service illustrated in Figure9 and designated by reference character G'. i

Thus it will be seen by scrutinizing Figures 3,

4 and 8 that the air passes from the floor level into the unit and out of the unit near the ceiling and circulates through the room somewhat as illustrated in Figure 8, the unit being preferably positioned adjacent one of the walls and in the center and the blades 45 bent so that the air is dwcharged from the front grille fan-like and from side grilles 41 which are preferably provided in section D. 7

Thus by a proper position of blades 45 the entire ceiling surface of the room may be swept by the discharged conditioned air and naturally it will pas downward over the entire surface of the a room in a manner which will not be perceptible" to the occupants.

This design is particularly useful when a steam coil is used for cold weather because the floor will be kept warm by the passage'of the heated air on its return to the unit. the designs shown in Figures 3, 4, 8 and 9 are preferable. By scrutinizing Figure 9 it will be seen that the air is directed through the unit in a very eflicient manner.

Thus it will be seen that we have provided a simple, easily manufactured, easily shipped and erected self contained air conditioning cabinet which may be positioned in a room and adjusted so as to efllcientiy condition or heat the air and move it through the room for maximum comfort -.to the occupants.

unit E may be positioned in chamber H in lieu of the arrangement of parts in this chamber as illustrated in Figures 3; and 9. And when this is For this reason ll By referring to Figure 3 it will be seen that done, partitions t1 and 88 may be dispensed with ll and the air caused to move upwardly through the entire bottom compartment and in contact with member E and then into the evaporator compartment similar to the design shown in Figures '3 and 9 as illustrated by arrows.

Clearly many minor detail changes may be made without departing from the spirit and scope of the present invention as recited in the appended claims.

Having thus shown and described our invention, we claim:

thereof and having a cover forming a supplemental compartment and side air ducts for its length, an access door in said supplemental oompartment, a drip pan on the top of said supplemental compartment terminating transversely at the outlet end of said air ducts, a compressor unit positioned in said supplemental compartment, a tank in said supplemental compartment having the condenser coil therein. a drain connection from said drip pan leading into said tank, means for maintaining the desired temof the cooling water in said tank, grille inlets in said air ducts near the bottom thereof, an evaporator coil positioned in the top of said second t having an air outlet into the third compartment and an air directing duct therearound the bottom of which terminates a distance above said pan. means between said duct and pan adapted to direct the condensate into the pen, a blower fan in said third compartment having inlets therefrom and an outlet into the room served.

2. A device as recited in claim 1 including; said fan outlet having spaced inwardly extendin: vertically positioned blades their outer edges being anchored and adapted to be bent to thereby itscharge the air in any desired direction or fan- 8. A device as recited in claim 1 including; said last two chambers being detachably secured together and to said first chamber.

4. An air conditioning device of the class described, eomprising an elongated vertically positloned housing being rectangular in cross section and having a width considerably greater than its depth and being separated into three or more compartments one above the other, spaced vertical partitions in the bottom or first compartment extending from the front to the rear panel thereof and having a cover forming a supplemental compartment and side air ducts for its length, said air ducts having inlets at their bottoms and outlets into the compartment next above said supplemental compartment, a compressor and condenser mechanism in said supplemental compartment, an evaporator positioned in said compartment next above said supplemental compartment and having an air outlet into the adjacent or third compartment, the compartment positioned next above said evaporator compartment having therein a blower fan with inlets therefrom, a top chamber receiving the outlet of said'fan and having outlet grilles into the room served, a drip catching means positioned below said evaporator coil and having means whereby all of the drippinss caused by said evaporator will be caught thereby.

5. A device as gecited in claim 4 including; filter pads in said air ducts positioned above said inlet grilles whereby all of the circulating air must pass therethrough.

6. An air conditioning device of the class described, comprising an elongated vertically positioned housing being rectangular in cross section and having a width considerably greater than its depth and being separated into three or more compartments one above the other, spaced vertical partitions in the bottom or first compartment extending from the front to the rear :panel thereof and having a cover forming a supplemental compartment and side air ducts for its length, an access door in said supplemental compartment, means forming a drip pan on the topof said supplemental compartment, a compressor unit positioned in said supplemental compartment, said air ducts having outlets into said second compartment and inlets at their bottoms. an evaporator unit positioned in the top of said second compartment having an operating connection to said compressor unit and an air outlet into said third compartment, a blower fan in said third compartment having inlets therefrom and an outlet into the room served.

FRED M. YOUNG. EDWARD H. STEMPEI... 

